// Copyright 2015 The LUCI Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package pattern

type constant bool

func (c constant) Match(s string) bool {
	return bool(c)
}

func (c constant) String() string {
	if c {
		return "*"
	}
	return ""
}

var (
	// Any matches anything.
	Any Pattern
	// None matches nothing.
	None Pattern
)

func init() {
	Any = constant(true)
	None = constant(false)
}
